https://community.cloudera.com/t5/Support-Questions/Http-Error-500-KerberosName-NoMatchingRule/m-p/195413#M157469 <P> Hi,</P><P> Since I kerberized my cluster I'm unable to access Solr UI.</P><P> When I go to Solr UI I get a "HTTP ERROR 500" </P><P> (For confidentiality reason I replaced username / DOMAIN / COM but imagine it exactly as joe@EXAMPLE.COM)</P><P> </P><PRE>Problem accessing /solr/. Reason : Server Error Caused by: org.apache.solr.common.SolrException: Error during request authentication [...] Caused by org.apache.hadoop.security.authentication.util.KerberosName$NoMatchingRule: No rules applied to &lt;username&gt;@&lt;DOMAIN&gt;.&lt;COM&gt;</PRE><BR />Any hint ?<BR /><P>Thanks.<BR /></P> Mon, 22 Jan 2018 22:55:39 GMT julian_blin 2018-01-22T22:55:39Z